Martinez has had first-hand experience of dealing with a wantaway player but insists his situation with winger Charles N'Zogbia cannot be compared with the Tevez saga. N'Zogbia was on the verge of leaving for Birmingham in the summer of 2010 only for the deal to collapse at the last minute. The Frenchman eventually left 12 months later for Aston Villa, the Latics' opponents on Saturday, but Martinez stressed he had no problems with the winger's attitude in the intervening period. That contrasts sharply with Tevez, who has been suspended by Manchester City for apparently refusing to play against Bayern Munich in the Champions League on Tuesday. "You need to remember football is a team game," said Martinez. "As an individual your success relies on how much you can work and help the team - you will never see an individual benefiting from selfish conduct. "When you have an individual having a very selfish act you lose the respect of the players more than anything. "It is very difficult for you to earn that back and that is the biggest problem Carlos is going to have at Manchester City. "I am sure Manchester City will deal with that situation in a different way to how other clubs would do because money is not an issue and they can make a decision on the football side. "But I never saw that behaviour in our dressing room." Martinez added: "We provoke it and we need to take responsibility for it because we created the transfer window. "It gives players a specific time to make decisions about their futures. "The windows bring great excitement for the fans and outside the club but it brings controversy and a contrast of emotions when you have got important games to play for your club and at the same time you are forced to decide the next step of your career. "That can bring difficult situations but we have never been in a situation where a player never wanted to help the team achieve a result and that is completely different." Saturday will be the first time Martinez has faced N'Zogbia since he left the DW Stadium. The Frenchman played a key role in the Latics' survival last season and the Wigan boss is well aware of the threat he can pose - even if he has not discovered his best form so far. "It is never easy to move into a different team but the good thing about Charles is he loves the game and is always available," said Martinez. "Sometimes you get a move and for whatever reason it takes a bit of time to settle in and then because of that mindset you start getting injuries and are not available for the team. "Charles will take time to reach his full fitness but is a player who can win a game in one action and that is a real talent which is very difficult to find these days. "He has been available in every game, has played a lot of football, and is part of that transitional period when a new manager (Alex McLeish) arrives at a football club. "I think he has done well so far and has the potential to be a fantastic player, a top player with his country and the club he is representing. "He is only happy when he is on the pitch and when you get players like that it is just a matter of time before they are successful. "But it is going to take time to be himself. I hope he hits his best moment of form further down the season. "If on Saturday he can have a quiet moment it would be much appreciated."
